Parametric image registration: how to find set of parameters

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ImageProcNaive 2014-12-2

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https://ww2.mathworks.cn/matlabcentral/answers/165142-parametric-image-registration-how-to-find-set-of-parameters

编辑： Matt J 2014-12-2

Hi all,

I want to calculate the translation parameters from a transformed image. I have the original image and I can obtain the error function by E= abs(Inew-Ioriginal)^2. I have to take derivative of this error function wrt the parameters. And I am not sure how to take derivative wrt the parameters. Can anyone help?

Please see the lecture for details:

http://cdn.intechopen.com/pdfs-wm/297.pdf

Thanks in advance.

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回答（1 个）

Matt J 2014-12-2

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That will be very hard to build from scratch in MATLAB. The quicker route is to just use imregtform().

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ImageProcNaive 2014-12-2

Can't use any built in function.

Matt J 2014-12-2

编辑：Matt J 2014-12-2

You will never be able to avoid builtin functions for something as complicated as this. If you're allowed to use fft2, you could code your own correlation-based registration algorithm.

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